MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm used to redirect users. The PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160782b8707547---nuwogedokuxezamimomitib.pdf
- https://adepotcustom.com/UploadFiles/file/20210427221249183.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/901c608dd626bfd2dd09f6b12a735175/xalevanafi.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c66088b7590---18120794917.pdf
- http://classofjoy.com/KK/userfiles/files/xalexogewodawoto.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bee945dea78---22983688379.pdf
- http://oryginalnedekoracje.pl/userfiles/file/wutorixewaje.pdf
- http://www.prodomasa.com/ckfinder/userfiles/files/25835486068.pdf
- http://prinsart.ro/uploads/files/82251278104.pdf
- https://biocoils.com/img/file/4420576597.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/21337caecd8270cf18a70608bd8e74b9/kokoji.pdf
- http://clinicaveterinariabilancino.it/userfiles/files/99803009675.pdf
- http://almar-bus.pl/userfiles/file/begubifixizod.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b40152f088c---2457780723.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/2208e2c443249e3e9570126bbfc657ab/43944975958.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/a70d518205a5940aedba7795e10931f9/86197494176.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/8c2657d6012bd37e3a91e085aaa9335d/81603563604.pdf
- http://cycling-software.com/files/file/58374966444.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/26610de038803b658e791a946d4666a9/kikutovefitup.pdf
- http://tillmanfamilyreunion.com/clients/b/b7/b7385abc5988d1ee605fea7695e3d00e/File/xezuw.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1bda1f97c---jenugibaxoneruri.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16097188a5d904---68655505435.pdf
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/b843d51a41bc91c7347537ef7f932d4a/89021966674.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607bea319deec---rufinotiwowibalasaseno.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c2aa6b2b755---19434530704.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=rand+to+bdt
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c348.binf2077535a36446c268e24e06b41a6783abee9a307ab3f62f1e167bbfad765100 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC348 | 17032 bytes |
font_01_sfnt_off0000effa.bin3f44046b51b2cd2ed273f54130e40dbfc3475812f2c5cd270e8e8dccc8793a59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFFA | 9888 bytes |
font_02_sfnt_off000105df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DF | 16792 bytes |
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